does it work in safe mode? was this a topic or post?
are you an admin or mod? more information would help.
my guess is it is related to one of the various post edit trust level limit settings?
Is a topic. As admin I can delete, but I want to be able to delete my own posts also if im not an admin
Users are limited to delete their own topics only if it has no replies and is less than 24h old.
How I can change this setting?
I had a look and there appear to be no site settings for deleting topics. You should redirect your users to the flag button where admins can remove it instead if they see fit.
It may contain erroneous data; otherwise, close the topic and delete it afterward. I’ve encountered this situation once or twice before.
Yes is probably the nested the problem, but how to fix?
many of the topic admin and post admin functions are not working as expected yet in the nested mode
https://meta.discourse.org/n/nested-mode-disables-post-admin-wrench-menu-actions/403155/1
Team will fix when they can
Thankyou, is amazing to be here. I really appreciate your work. Waiting for the fix 
it look fixed. thankyou